Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2014
Building and improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	5 years
Building and improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	30 years
Leasehold improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	1 year
Leasehold improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	20 years
Computer hardware [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	3 years
Computer hardware [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	5 years
Computer software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	3 years
Computer software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	10 years
Factory machinery and equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	1 year
Factory machinery and equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	15 years
Research and development equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	5 years
Research and development equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	15 years
Vehicles [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	3 years
Vehicles [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of property, plant and equipment	8 years